It's usually a mistake to build a large scale solution without consulting with others in your organization or team. Other engineers often have good feedback that will make your solution better and you are likely missing some core premise or context.
It's also a mistake to seek too much approval from others before proceeding. In any group of X people, Y% won't agree with you, and of those, Z% will be uncivil. By uncivil, I mean harsh criticism or otherwise toxic behavior that is not constructive.
If the organization is healthy that Z% is small and troublemakers will be handled by management if they do act up. If not that Z% will basically become like bridge trolls and you will be opposed by a confederacy of dunces every time you try to do something of consequence.
I've experienced both of these scenarios, and striking the right balance is an art and a science that boils down to reading the politics of the place and getting buy in from some key people so that your project at least has a fair shot. Sometimes the place has gone toxic and it simply can't be helped.
If you're in a situation where there is a high percentage of Z, you should ask yourself if the work you are doing is worth playing the politics necessary in order to get the job done. If yes, get smart, read books like the The Prince and Art of War and figure out how to play the game. If not, get outta there as expeditiously as possible, and put your time and effort to something more worthwhile. If you want to be kind, let management know in a professional way exactly why you are leaving so that they can have an opportunity to try to make life better for your colleagues.